Fermat's interferometric principle for redatuming surface sources and PS transmissions traveltimes to the target body

Xiang Xiao*, Min Zhou, Gerard T. Schuster

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

An interferometric form of Fermat's principle is presented for redatuming PS transmission traveltimes to be those for sources lowered to the target body. The velocity model does not need to be known for redatuming, so the distorting effects of uninteresting parts of the velocity model and statics are eliminated by this target-oriented approach. Thus, traveltime tomography applied to the redatumed PS traveltimes has the potential for higher resolution of that target body's velocity distribution from earthquake and VSP data.

Original languageEnglish (US)
Pages (from-to)3418-3421
Number of pages4
JournalSEG Technical Program Expanded Abstracts
Volume25
Issue number1
DOIs
StatePublished - Jan 2006
Externally publishedYes

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

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